New Feed Lip Configuration For Ultra-Smooth, Extremely Reliable Feeding The Chip McCormick .45 ACP Railed Power Mag has unique dual-wall "feed rails" that are twice as strong as standard feed lips to prevent jams caused by bent, warped, or damaged lips. The rails provide an extremely smooth surface that further encourages smooth feeding. The key is putting extra metal on the feed lip area, then rolling it inward for a huge increase in overall rigidity of this area. The Chip McCormick .45 ACP Railed Power Mag also has a mag body of corrosion-resistant stainless steel with laser welded seams so there are no snags when inserting or dropping the mag from the magwell. The s Mfg: Chip Mccormick Custom